THS1230CDW

Analog To Digital Converters (ADC) Overview

The THS1230CDW is a 12-bit, 30 MSPS analog-to-digital converter (ADC) from Texas Instruments, housed in a 28-pin SOIC (DW) package. It operates on a single 3.3-V supply and features a differential analog input with configurable gains of 0.5x or 1.0x via CON0 and CON1 pins. The device includes an internal voltage reference, which can be bypassed for external references, and provides an out-of-range indicator. Designed for low-power applications, it supports standby mode and is characterized for operation from 0°C to 70°C.

Analog To Digital Converters (ADC) Feature Summary

• 12-bit resolution with a maximum sampling rate of 30 MSPS
• Differential analog input with selectable gain modes (0.5x or 1.0x)
• Integrated internal voltage reference with external reference capability
• Out-of-range status indicator and power-down/standby modes

Analog To Digital Converters (ADC) Applications

• Set-top box (STB) systems
• Digital cameras and camcorders
• Copiers and charge-coupled device (CCD) input systems
• Communications equipment
• Test instruments and IF/baseband digitization

Analog To Digital Converters (ADC) Procurement Notes

Verify the package type corresponds to the DW (SOIC-28) variant, as the THS1230 family also includes PW (TSSOP-28) packages. Confirm the temperature grade 'C' indicates commercial range (0°C to 70°C), distinct from the 'I' grade (-40°C to 85°C). Check for RoHS compliance markings such as G4 suffixes if required by specific manufacturing standards.

Analog To Digital Converters (ADC) Selection Notes

Select this component when a high-speed, low-power 12-bit conversion is required for video or communications signals. Ensure the input signal amplitude matches the selected gain mode (Mode 1 for ±1V span, Mode 2 for ±2V span) relative to the reference voltage difference. Consider the 5-cycle pipeline latency and output timing constraints when interfacing with DSPs or ASICs.

Analog To Digital Converters (ADC) Part Context

The THS1230CDW is part of the THS1230 series of CMOS ADCs. It shares functional characteristics with other variants like the THS1230IPW but differs in packaging and operating temperature range. The CDW designation specifically identifies the commercial-grade device in the standard 28-lead SOIC package, suitable for general-purpose high-speed data acquisition.

Analog To Digital Converters (ADC) Replacement Considerations

Direct pin-compatible replacements within the same family include THS1230IDW (industrial temperature range). For different packages, THS1230CPW offers the same functionality in TSSOP-28. Verify that any substitute maintains the 30 MSPS speed and 12-bit resolution requirements.